Drum beater



El o. ROARK DRUM BEATER .lune 16, 1931.

Filed Sept.l l2. 1927 1 N VEN TOR.

A TTORNE Y.

\ numeral 4 designates a spindle havin Patented June 16, 1931 UNITED STATES PATENT OFFICE ERNEST O. ROARK, OF KANSAS CITY, ll'ISSOURI, ASSIGNOR OF ONE-FOURTH TO CLARA M. OSHAUGHENFSSY, OF KANSAS CITY, MISSOURI DRUM 13E-ATER Application led September 12, 1927. Serial No. 218,941.

This invention relates to beaters for percussion musical instruments and cymbals.

The principal object of this invention is the provision of a beater having a pneumatic head, which is adapted to be used on any of the ordinary beaters, such as drum sticks, pedal beaters, etc.

Another object is the contemplation of a beater, the head of which may be inflated or deflated to any desired degree of hardness, thus making it possible to vary the tone quality produced when it is used on a percussion musical instrument.

A further object of this invention is to produce a beater having a pneumatic head which is supported at its opposite sides.

Minor objects of this invention will appear during the course of the detailed specification, referring to the accompanying draw-y ings, wherein Figure 1, is an `elevation of percussion musical instrument beater partly broken away, embodying this invention.

Fig. 2, is an enlarged central section, partly broken away, of the same, and

Fig. 3, is an enlarged sectional view taken on line III- III of Fig. 2.

Similar reference characters refer to like parts throughout the several views, and the a flange 5 adjacent each end thereof, an a threaded portion 6 at each end thereof eX-k tending beyond said flanges and adapted to receive clamping nuts 7 and washers 8.

A flexible fluid container 9, having two openings 10 in which the threaded portions 6 of the spindle 4 are adapted to be inserted respectively, is made of any suitable resilient material, such as rubber, and is held in its desired shape when inflated by means of a fabric casing 11, which is adapted to snugly lit on the outside of said fluid container. An elongated opening 12 in the side of fabric casing 11 is provided with lacing means 13 f L for closing the same.

When the casing 11 and container 9 are positioned on spindle 4 as shown in Fig. 2, with washers 8 in position, the clamping nuts 7 are screwed on spindle 4 until said parts are securely attached to said spindle, thus forming a suitable fluid chamber 14, which will effectively hold fluid under pressure.

Gue end of said spindle is provided with an axially disposed, threaded recess 15 which is adapted to receive the threaded/portion of a beater arm 16, which may be any suitable carrier for said head. The other end of said spindle is provided with an inwardly eX- tending valve chamber 17 in which ismounted any suitable check valve 18, such is used in the ordinarypneumatic tire, which permits of the inflation and deflation of said fluid container 9. Extending from valve chamber 17 and communicating with chamber 14`is a port 19. The inner end of the valve stem is provided with a loosely fitting cap shaped washer having its inner end serrated to allow free passage of air from chamber 17 to cnamber14 through port 19. This washer serves as an abutment for the spring and also serves to center the valve stem inthe chamber. The valve is protected by a cap 20 which is adapted to screw on the end of spindle 4 and close the chamber 17.

If desired, a soft covering 21, such as natural wool, may be secured to the head out side the fabric casing.

It is apparent from the construction as described and shown in the drawing, that the beaterhead may be inflated and deflated in like manner as are the ordinary pneumatic tires.

I do not limit this invention to the structure shown and described as many modifications may be made within the scope of the appended claims without departing from the spirit thereof.

What is claimed as new and desired to be secured byLetters Patent is 1. A substantially non-elastic hollow head for drum beaters.

2. A non-elastic hollow head for drum beaters having means for inflation and deflation.

3. A drum beater comprising a hollow head having a spindle extending therethrough and a beater arm detachably secured to said spindle.

4. A drum beater comprising a hollow head having a spindle extending therethrough,

means for securing said head in position, on said spindle at its opposite sides, and a heater arm detaehahly secured to said spindle.

5. A drum beater Comprising a hollow head having a spindle extending therethrough, means for securing said head, on said spindle, at its opposite sides, a valve in said spindle controlling the passage of air to and from said head, and a heater arm detaehably secured to said spindle.

G. A drum heater Comprising a pneumatic head having an innerl ruhher container and a fabric casing, a spindle having a. flange adjacent each end thereof, extending through said Container and easing, threaded portions on said spindle extending beyond said flanges, nuts cooperating With said threaded portions and flanges to secure said container and easing on said spindle at its opposite sides, a valve Chamber in said spindle extending 'from the outer end thereol1 and Communicating With the pnmnnatie head, a valve in said Chamber controlling thy passage o'l 'luid therethru, and a beater arm detaehahly secured to said spindle.

7. A drum heater including a head having a cavity formed therein, a spindle extending through said head and a port communicating with said cavity.

S. A drum heater including a head having a cavity formed therein, a spindle extending through said head. and a valve Controlled port Communicating with said Cavity.

9. A drum heater Comprising a hollow head having` a spindle extending there-through, means for seein-ing said head in position on said spindle at its opposite sides and a valve in said spindle controlling Jdie passage oi" air to and from said head.

l0. A drum beater comprising a heater arm and a hollow inflatable head securely attached thereto,

In testimony whereof, I hereunto aliiX my signature.

' ERNEST O. ROARK. 

